Crossword Genius

She has £50 to pay out! (5)

Ross

I believe the answer is:

shell

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'pay out' is the definition.
(thesaurus)

'she has ps50' is the wordplay.
'has' is a charade indicator (letters next to each other).
'ps50' becomes 'll' (I can't justify this - if you can you should believe this answer much more).
'she'+'ll'='SHELL'

'to' is the link.

Can you help me to learn more?

(Other definitions for shell that I've seen before include "Conch, perhaps" , "Mortar missile" , "Crustacean's protection" , "Mollusc's protection" , "A little pasta" .)

I've seen this clue in the Evening Standard.
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